Measurement of crack opening stresses and crack closure stress profiles from heat generation in vibrating cracksApplied Physics Letters
AbstractA method is described to measure crack opening stresses and closure stress profiles of a surface-breaking crack. Vibration is used to generate frictional heat by rubbing crack face asperities. Heat is generated at regions of contacting crack asperities under low, but nonzero, closure stress. Increasing force is applied to incrementally open the crack and measure the locations of crack heating as a function of applied load. Surface crack closure stresses are approximated from the heating locations as the load is varied and the crack opening stress is measured from the load required to fully open the crack and terminate heat generation
RightsCopyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Copyright OwnerAmerican Institute of Physics
Citation InformationJeremy Blake Renshaw, Stephen D. Holland and R. Bruce Thompson. "Measurement of crack opening stresses and crack closure stress profiles from heat generation in vibrating cracks" Applied Physics Letters Vol. 93 Iss. 8 (2008) p. 081914
Available at: http://works.bepress.com/rbruce_thompson/19/